First fry the rava in medium flame for 2 minutes with a teaspoon of oil if its not roasted rava. This is optional too, I don't roast, still love the aroma.
Heat the kadai/pan with oil and temper with mustard (should splutter),urad dal,chana dal. Let dal turn golden crisp.
Add the curry leaves followed by slit green chillies, chopped onion and fry till onion just turns transparent.
Add the veggies and fry for two minutes in medium low flame. Pour water, bring to boil.
After it boils, add the wheat rava little by little in a sprinkled way. Stir well.
Add salt and let it boil in high flame until the water content reduces and the mixture turns like porridge consistency.
Now simmer the flame to low and cook covered for 10 minutes or till all the water is absorbed and you get a soft upma.
You can add a teaspoon of coconut oil at end for a unique flavour